Ebyte Rf Transmitter 433mhz Sx1278 Lora Iot Module wireless rf module 433
[IC]：SX1278
[Frequency]：410~441MHz
[Power]：10~20dBm
[Distance]：3.0km
[Interface]：UART
[Weight]：1.2±0.1g
[Introduction]：E32-433T20S1 is a wireless transceiver module based on SX1278 of SEMTECH (it can be transmitter and receiver both). It adopts LoRa spread spectrum technology, with this technology the transmitting distance and diffraction of the module improved greatly compared with traditional FSK.
| Pin No. | Pin Item | Pin Direction | Pin Application |
|---|---|---|---|
| 1 | M0 | Input（weakpull-up） | Work with M1 & decide the four operating modes. Floatingis not allowed, can be ground. |
| 2 | M1 | Input（weakpull-up） | Work with M0 & decide the four operating modes. Floatingis not allowed, can be ground. |
| 3 | RXD | Input | TTL UART inputs, connects to external TXD (MCU, PC) output pin.Can be configured as open-drain or pull-up input. |
| 4 | TXD | Output | TTL UART outputs, connects to external RXD (MCU, PC) input pin.Can be configured as open-drain or push-pull output. |
| 5 | AUX | Output | To indicate module's working status.To wake up the external MCU, during the procedure of self-check initialization, the pin outputs low level.Can be configured as open-drain output or push-pull output. Floating is allowed. |
| 6 | VCC | Input | Voltage reference of module, power supply 2.3V ~ 5.5V DC. |
| 7 | GND | Input | Ground |
| 8 | GND | Output | Reference places of high frequency signal output. |
| 9 | ANT | Output | Antenna interface (high frequency signal output). |
| 10 | GND | Input | Ground |
| 11 | GND | Input | Ground |